Step into the world of the great plein-air painters, where the act of painting moved beyond the studio and directly into the landscape itself. This 5-volume collection reveals how masters such as Thaulow, Chase, Sargent, Mønsted, and Sánchez-Perrier observed, responded to, and captured light, atmosphere, and fleeting natural conditions in real time. Through direct engagement with nature—often working quickly, decisively, and with remarkable sensitivity—they developed methods that balanced structure with spontaneity. This series offers insight into their working practices, materials, and on-site decision-making, providing both inspiration and practical understanding for painters who wish to deepen their own approach to painting from life.